I feel like this an interesting angle and I want to approach the discussion in good faith..

So why should it be morally ok to show support/better the public image/engage with a party that is supporting/purporting some huge morally bad things?

My reasoning is as follows, I wonder where you wouldn't agree:

A: You shouldn't support people doing morally bad stuff

B: Someone supporting morally bad things is morally bad

B.2: Sharing/Engaging with them shows support and betters their public image

C: Kaspersky is an oligarch supporting stuff that is morally wrong

D: So you shouldn't support him by driving engagement to his site