You certainly can. The party is in its weakest state its been in for generations, there’s huge sections of the country where they are barely active or not active at all. The party establishment is largely reviled right now. If a bunch of leftists starting showing up and taking over the party infrastructure it would make a difference. Acting like what went on back then has any significance to what is facing us now is ridiculous, the world is a completely difference place. Complaining about this dumb shit that happened almost a decade ago serves no purpose at all except to encourage leftists to further alienate themselves, which is the exact opposite of what we need right now.