You can read it charitably until the last sentence:

Ok,if they go that route then they quickly lose control of their own country via birthrates and the ballot box.

This is true. If you (correctly) see Israel as an ethnostate this is obvious.

Can you see why they might not be too enthusiastic about what to them looks like conquest via democracy?

I can understand that people who support ethnostates are racist, yes.

You may see this as morally right,but their reticence is human.

And here's where he loses me. There's nothing "human" or "natural" about racism.