As much as I'd like to get along with everyone around me, some things are not OK. Some things can never be OK, and I can't pretend they are OK. Not even if it hurts someone's feelings.
Statism is exactly as "not OK" as chattel slavery. Minarchism is the moral and ethical equivalent of excusing "just a little slavery". Either, "only" enslaving a small percentage of the population, or enslaving everyone "just a little". Actually, it isn't only the moral and ethical equivalent- it is exactly that: slavery.
The State = Slavery. Every single time, without exception.
How much slavery are you defending? How much slavery are you OK with? I'm not OK with any at all.
That doesn't mean I will go around carrying my soapbox and shouting to the slavers about how evil they are... but maybe I should. Maybe for the sake of comfort I am neglecting to do the right thing. It's a possibility I am willing to consider.
Those defending things that are never OK shouldn't be coddled. They should be shown reality, and if they reject that, they should be ridiculed, laughed at, shunned, shamed, and treated like what they are.
I know that's not "nice". But at some point, being "nice" to people advocating bad things is implicit support of the bad things they advocate. You can compartmentalize, if possible, because everyone has different facets to their life- some good, some bad. But, when your fishing buddy is chanting for slavery, call him out on it. Don't stay quiet just to save his feelings.