The main point here that people have to get here is that he is totally against Jean-Marie Le Pen and Jörg Haider who are popular in France and Austria (respectively) and they supposedly fight against Islam.
And if you remember Tommy Robinson of the English Defense League (in the UK) - Wilders wanted nothing to do with them either - even though they constantly protested against Islam there.
I - personally - would not support those people either, or their groups - but would FULLY SUPPORT Geert Wilders!
Haider hasn't been fighting anything lately. He's joined the choir invisible.