Little Froggie:
You left out a key word from that Medrash:
?????? ?????? ??? ?? ?????? ???? ?? ???? ???? ????? ??? ???? ????? ??? ?? ????? ?? ?????
????
???? ?? ?? ???? ???? ????? ????? ?? ??? ???? ????? ????? ????? ???? (???? ?? ?) ??? ?? ???? ???? ?? ???? ???? ????? ??? ???? ????? ??? ?? ??? ?? ????? ???? ?? ?? ?????
(Sifrei in Beha’aloscha)
It doesn’t mean that if you hate the Jews then you by definition hate Hashem. It means that if you hate the Jews you are treated as if you hate Hashem. This can be proven from the Yalkut Shimoni, which brings this medrash but adds a line:
??? ?? ????? ?? ????? ???? ???? ???? ?? ???? ???? ????? which obviously does not mean that you literally helped Hashem. It means that you are treated as if you had helped Hashem.
Therefore, I don’t think it’s fair to assume that certain people hate Hashem. Maybe according to your perspective (which I am not disagreeing with) their actions would constitute hating Hashem. But they are not coming from this perspective. From their perspective they are doing what Hashem wants them to do. They might be 100% wrong and deserving of vilification but that doesn’t translate into them hating Hashem.