You’re not taking it far enough. What if Mullvad has someone you disagree with as a customer, and does nothing about it. Does this mean that Mullvad is supporting them? Does this mean that you have to stop supporting Mullvad? What about Mullvad’s landlord? The company that provides them their electricity? Their internet provider? Their internet provider’s internet provider? Should you boycott the entire internet because Mullvad has not been given the BGP death penalty?
What are you trying to say with this? This is absurd.
The outrage has nothing to do with Mullvad itself supporting people with certain opinions or not.
The problem I and many others have, is that if the founder takes our money and gives it to causes that I (edit: or rather we) find reprehensible, we don't want to give them our money anymore. Simple as that.
I will not try to stop you from using Mullvad by any other means than my arguments. Hopefully you understand now where we are coming from and agree. If not, just do your thing.
It's almost like there's a difference between selling services to someone and directly donating to a political party.