Is it right, that God wants anything that exists to exist?

God values humans much more than other species. mammals and other species are created for human. If God values human more valubale then that is final justice. it will remain as just. God determines which is right and wrong.

How does the power of God reconcile with the existence of mammals? If mammals are meant to be surpassed (implying that homo sapiens are meant to be surpassed), this ought to demonstrate that God isn't omnipotent.

He/she wanted me to exist as an atheist. Thank ya, lord.

Things can exist for Final Causes that do not follow any want during their course to that final end. That is why the Bible says 'All things work to the good for those who love God" and Aquinas adds 'even your sins". But God does not want sin.

You go from 'if' to 'ought' without proving your if.

How does the order of nature reconcile with pigs who are not good at math ?
If pigs are meant to be better at math than otters then how come I have never seen a pig who could even count to 2? this ought to demonstrate that there is no order of nature.

Well, are you good at math?

It is right that existing is the reason of wanting not the other way around.