I agree that focusing on the culture war stuff to the detriment of material support of Palestinians is not the best use of your time (like what we're doing here, so I'll try to keep this short), but we're talking about a multimillion dollar brand not an individual.
The dude can believe whatever he wants, but when he starts enacting policy on employees, he's no longer just holding an opinion. He's enforcing a narrative in exchange for cash money.
Also there's ur-fascism everywhere and we've for to keep our eyes peeled, but there's also an active genocide lead by a fascist colonial project of eradication going on right now, so maybe calling the people who get angry at celebrity brands online "fascist" is kind of small potatoes, wouldn't you agree?