You know, even ignoring Suyin's whole issues with Lin (and for the record I think Lin is completely in the right on them), Suyin is at best shady, and worst a criminal, and terrorist sympathizer.
Ignoring the fact that Varrick eventually suddenly gains a conscience as said here
>>86736269 we first see him in season 3 hanging out with Suyin who is giving him asylum because she "believes in second chances" or whatever.
You know that's all well and good but Varrick is at this point a cross between Steve Jobs and Osama Bin Laden. He is not someone who deserving of a second chance.
He literally helps start a civil war to profit from it, steals Asami's company, bombs Republic City to force them to enter the war, and when that fails he tries to kidnap the president to frame the Northern Water Tribe so that Republic City will be forced to intervene another nation's civil war, despite them really, REALLY not wanting to get involved.
And this is the guy who she keeps as a house guest. This is someone she sees as a friend. But it's okay, because the rest of her staff are pirates and criminals too.
And that's not even getting started on the fact that her adopted daughter turned into Hitler when Suyin refused to help her own country as it fell into chaos and anarchy after the queen was assassinated, instead opting to stay locked up in her pearly gated community while the rest of the nation suffered.
Although Kuvira ultimately went too far in just about every way, initially she was right that something had to be done and someone needed to step up and help out, as none of the other nations were going to come to their rescue. She wanted Suyin to be the person to do it, but she refused, so Kuvira ultimately took charge.
When even her faux-daughter Girl-Hitler is more altruistic and selfless than Suyin herself, you know she's awful. I think hanging out with Varrick is proof of that, but Kuvira is a big strike against her as well. You know, in addition to that Lin stuff.