I think the sociological and common definitions of homophobia are getting mixed up here and elsewhere in the thread. Eich probably doesn't fear gay people (common definition), but his support of the anti-equality campaign contributed to a society where homophobia has serious and sometimes fatal consequences (sociological definition).

he obviously fears the fact that gay people could marry like he can,or he would not have donated 1000$ against gay marriage.

You're taking a stereotype and applying it to an individual based on one point of data. It should be obvious to you that this is not going to be accurate and that it's logically flawed.

The fact that you find his politics regressive and consider him to be a bad person doesn't excuse your poor logic.