Can you be pro-Israeli AND anti-Trump ?

First things first. You're pretty darn boring and monotone.

And NO. it ISN'T hard to be pro-Israel if you oppose Trump. Most people in fact chew gum and walk at the same time.

So many words, so little space

The answer to your question is absolutely YES.

Trump has cosied up to the Saudi prince Mohammad Bin Salman who has launched a soft coup in Saudi Arabia. Saudi Arabia is about to recognize Israel who are strong allies of China. Israel is about to start building the RedMed railroad connecting the gulf of Aquaba with the Mediterranean. China is interested in this alternative to the Suez canal and possibly investing in Prince Salman's new "City of the future" Neom. Interesting developments in the middle east.

If this works out you might say that Trump has stepped into something good for a change.

Your logic fails.
That spoon once served poison, therefore it can never be used for soup.
It is quite simple to dismiss Trump as the buffoon that he is while at the same time support that which is not a shambling horror of wealth and entitlement.

(I heard a good quote from a movie that might be relevant;
When asked what his 'super power' was, he replied; "I'm rich!")