yeah... I've never really liked Alexei because his background with Yelena and Natasha. they were just little kids, and as much as he was brainwashed by the Russian government from the promise of staying the legendary Red Guardian, he could have done better. He's trying, he still sees Nat and Yelena as his heroic kids that he formed to be great, but still. I love his character development a lot, and he still sees his daughters as special, and in the Thunderbolts, we saw how affectionate with Yelena he was. how he was willing to step into the Void after her without a second thought. he's trying to make it better.
idk, thinking about Alexei and Yelena's relationship also make me wonder if in a way, she's being groomed and manipulated by him. Yelena wants a family, she doesn't want to be alone, and Alexei gives that even though he's done really bad things to her. in the Black Widow movie, when Alexei offers a hug, Natasha walks away bc she knows damn well how he sold both her and Yelena to the Red Room to be trafficked, abused and turned into weapons. Yelena, needing the comfort, lets him hug her because she still sees him as her father. idk, its a very interesting dynamic.
but with John, I've gotta disagree. yes, he's angry that Olivia left him (since he was basically taught to be angry and had the emotional span of a teaspoon at the time), but you can tell how guilty he is too. in his shame room, it wasn't his shame how Olivia left him, his shame was how he treated her and his son. he was looking at an article on his phone about the man he killed. he's a military man with unstable morals and an unstable life. ambition got the best of him, so did retaliation and impulsiveness, but the whole point of him was that he's trying to get better. he's still a bastard, yes, there is a whole bunch of things he could do to heal the hurt he's left, but he's a complex character. you just don't like him because you're not digging deeper.
but also, i feel like the military and government is a kind of brainwashing in its own. I'm not some crazy conspiracy theorist, i'm not saying it's mind control, but through propaganda, conditioning, idealism, standards, how some people look up to the government and think it's superior and practically pure gaslighting, the government can change peoples minds easily. people in the military, like Alexei and John, get directly commanded to be emotionless working and fighting machines. they are conditioned to make impulsive decisions because, in a war, that could mean life-or-death. the government, especially in places like the U.S and Russia, are shit, and John and Alexei are soldiers from that government, so no wonder they are flawed.
in a way, it was like they were brainwashed like Bucky was. Bucky made amends in TFATWS because he had years of thinking, because he's had therapy and has Sam, but John is different. he apologized to Lemar's parents, but doesn't have the support to apologize to everyone he's wronged. the time between TFATWS and Thunderbolts isn't much for John, while the time between CATFA and Thunderbolts for Bucky (even between the years he was mind controlled) was a lot of time.
i am NOT defending shitty dads here, but the whole thing about Thunderbolts is a second chance. Alexei and John have a very lucky second chance to use their abilities for good, and they are.