At first this can be quite structured and casual like, I should look for life opportunities abroad. Ooh, I quite like France and this outfit in Brittany are hiring in my field, I will apply and see what happens.
Gradually leaving becomes more urgent, and eventually you should focus just on getting over the border even if you don't have specific plans for where you'll go or what you'll do after that. Countries immediately bordering a fascist state often don't have a lot of patience for refugees, but, hey, at least you're out.
Fleeing makes sense for people at most risk of persecution (e.g. trans people, Jews, those who speak out), but many people are prevented from fleeing by their consciences. They have to stay and fight. See e.g. https://en.wikipedia.org/wiki/French_Resistance#Factions
If your home is on fire, some people will bravely stay and fight the fire, but the instruction we give everybody is to flee, you can get another home, but if you die there's nothing to be done about it, so better flee.
Please don't post nationalistic flamebait to HN. It just leads to flamewar hell.