Definitely. We ought to be encouraging people to self-critique their beliefs, and should welcome anyone who has realized that being a fascist/ancap/whatever is monstrous. However, there's an open question as to what genuinely "moving on" from the ideology looks like. I think it's reasonable to be skeptical and critical of people for whom reform looks like anything but something like "I was very, very wrong and I'm working every day to undo the harm I did both to individuals around me and society at large." Responding defensively to mentions of your past beliefs, or excusing your past beliefs with "well whatever, lots of people used to want to summarily execute people with disabilities, I've moved on" is a huge red flag that you actually haven't engaged in the rigorous self-critique necessary to come to terms with the harm you've done.
Definitely. We ought to be encouraging people to self-critique their beliefs, and should welcome anyone who has realized that being a fascist/ancap/whatever is monstrous. However, there's an open question as to what genuinely "moving on" from the ideology looks like. I think it's reasonable to be skeptical and critical of people for whom reform looks like anything but something like "I was very, very wrong and I'm working every day to undo the harm I did both to individuals around me and society at large." Responding defensively to mentions of your past beliefs, or excusing your past beliefs with "well whatever, lots of people used to want to summarily execute people with disabilities, I've moved on" is a huge red flag that you actually haven't engaged in the rigorous self-critique necessary to come to terms with the harm you've done.