Is it OK to disagree with how putin is hated?

I don't agree with war but I think that every president gets a lot of hate when they do so much for the country and then the haters use what he did. So if u hate him don't use it? Don't use oil etc.. Go live the life u had before. I think I can understand why he acts like that. i don't agree with ear but at the same I wouldn't hate him and call him evil bcs we don't know him
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*with war
Is it OK to disagree with how putin is hated?
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