Too much spinach and broccoli is bad for you?

Hi. I am curious about this. They say green vegetables are good for you. I like spinach and broccoli and so does my brother. I read online about the health risks of eating too much spinach and broccoli:

According to https://www.fix.com/blog/foods-that-can-be-toxic/#targetText=Spinach%2C%20Beet%20Greens%2C%20and%20Swiss%20Chard&targetText=Consume%20too%20much%20and%20you,%2C%20vomiting%2C%20and%20weak%20pulse. :

"Spinach, Beet Greens, and Swiss Chard
Dark, leafy greens are a nutritional powerhouse, packed with essential nutrients including vitamins A and C, iron, and folate. But some - namely spinach, beet greens, and Swiss chard - are also high in oxalic acid, the compound that gives hearty greens their signature earthy, slightly bitter taste. Consume too much and you may be in for unpleasant symptoms such as kidney stones, abdominal pain, low blood pressure, tremors or convulsions, vomiting, and weak pulse. But don’t think this means dark, leafy greens aren’t part of a healthy diet: In moderation, they’re perfectly fine. Some research shows it would take about 25 grams of oxalic acid to cause death in a 145-pound person, which would equate to about 7.3 pounds of spinach.

https://www.womenshealthmag.com/food/a19932655/dangerous-healthy-foods/ :

"Spinach
This versatile and delicious leafy green is packed with goodness: It’s an excellent source of protein, fiber, and various vitamins and minerals. Spinach is also high in lutein, a carotenoid that may help prevent age-related macular degeneration (a common cause of vision loss and blindness), says Gaby. However, spinach is also high in oxalate, a compound that can lead to the formation of kidney stones—so patients with calcium oxalate kidney stones should avoid overdoing it with this veggie."

Some other links about the health risks of eating too much spinach:

https://www.livestrong.com/article/529555-what-are-the-effects-of-too-much-spinach/
https://www.stylecraze.com/articles/serious-side-effects-of-spinach/
http://www.buro247.com.au/culture-lifestyle/health-and-fitness/the-shocking-truth-about-too-much-kale.html

However these links list the benefits of eating it:

https://guidedoc.com/health-benefits-of-eating-spinach
https://healthyeating.sfgate.com/eating-bowl-spinach-per-day-3620.html

This lists the pros and cons of eating spinach:

https://www.livescience.com/51324-spinach-nutrition.html

These list what happens if you eat too much broccoli:
https://blackdoctor.org/494243/7-healthy-foods-that-can-be-bad-for-you/ ;

"Cruciferous vegetables. Cruciferous vegetables like broccoli, Brussels sprouts, kale, cabbage and collard greens have many health benefits and are shown to reduce your risk for cancer and heart disease. However, eating too much of them can cause some other health-related issues. There are compounds present in these vegetables called thiocyanates which can affect your body’s ability to absorb iodine. This can lead to a condition called hypothyroidism, which occurs when your thyroid gland becomes underactive. Some immediate symptoms include weight gain, constipation, dry skin, low energy levels and an enlarged thyroid gland. While these veggies are healthy, adding too high of an amount to smoothies or green juices can throw your body off balance with thiocyanates. If you are prone to having thyroid issues, consume moderate versus large amounts of these type of vegetables."

https://www.healthline.com/nutrition/8-health-foods-harmful-in-large-amounts
https://www.medicaldaily.com/dark-side-broccoli-and-kale-could-cruciferous-vegetables-be-bad-you-267892

https://www.thinkingnutrition.com.au/broccoli-bad-for-you/ :

"To start with, broccoli is a well-described goitrogen. Goitrogens are chemicals that suppress the function of the thyroid gland by interfering with iodine uptake, a key mineral needed to make thyroid hormone. This blocking of iodine uptake causes the thyroid gland to enlarge; a goitre is the end result.

Broccoli is loaded with goitrogens, particularly one group called thiocyanates. The consequence of eating these thiocyanates is the potential to develop the very serious condition of hypothyroidism. What is hypothyroidism? Well, do you or have you ever experienced any of these symptoms?

Fatigue and low energy levels
Unexplained weight gain
Depression
Slow heart rate
Intolerance to cold temperatures
Fatigued and aching muscles
Dry, coarse skin
Puffy face
Hair loss
Constipation
Problems with concentration
If you said yes to any of these, then you’re a candidate for being hypothyroid and I would be looking at broccoli as the prime candidate for causing this."

https://www.kevinstock.io/health/health-dangers-of-cruciferous-vegetables/
https://fitnessreloaded.com/broccoli-health-benefits/
https://goodhealthall.com/side-effects-of-eating-too-many-broccoli/
https://www.healtholino.com/can-you-eat-too-much-broccoli/

This lists the pros and cons of eating broccoli:

https://www.livescience.com/45408-broccoli-nutrition.html#targetText=In%20general%2C%20broccoli%20is%20safe,you%20gassy%2C%22%20Jarzabkowski%20said.&targetText=Those%20with%20hypothyroidism%20should%20also%20limit%20their%20intake%20of%20broccoli.

Which sources are correct? I am concerned about my diet and health, but I am not quick to believe everything I read online. I should consult my nutritionist about all this.

Please help- thank you.