You say that evildoers are aincere in their belief that they are doing good.
Making excuses is not sincere.
Explain to me what you mean when you accuse people of being simultaneously sincere and insincere in how they justify their actions to themselves.
If you want a historical example, the Cherokee Trail of Tears. When the Cherokee were taken off of their land they were forced marched and many died. The primary reasons was because it was good for them, for the Cherokee to learn about what it is to be an American, and for the people who took their land, to do so.
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And all these things are good things, according to the people who support them.
Your first example is a good example of the ambiguity in what you are claiming.
The primary reason that the Cherokee were forcibly removed to a reservation was to make way for the Gold Rush. The Europeans were not interested in the wellbeing of the Cherokee; they were interested in removing an inconvenience. According to the moral codes of European politicians, profit was good and the rights of natives were unimportant.
The claim that it was good for the Cherokee was bullshit: it was just an insincere excuse to appear virtuous and just. The Trail of Tears was not the result of some misguided attempt to help the savages; it was greed disguised as the White Man's Burden.
You are wrong to lump examples like this in with some of your other examples, such as hate speech and anti-discrimination laws, as these are based on a sincere desire to protect people's human rights. By making the comparison, you are accusing modern legislators of using minorities' rights as a mere pretence to achieve some other less noble objective.
Morality is neither good nor evil--it is simply the rules that govern a person's behaviour--and it makes no sense to hate morality or call it crap. You may not like what some people consider righteous but that does not mean that morals are categorically crap or hateworthy.
I also see a pattern in your examples: you have provided multiple instances where people in positions of power lie about their motives to justify their actions. If that is your beef, I totally understand it, but your are giving examples of people masquerading as righteous agents and erroneously blaming it on morality.