I don't support X but...

> I don't vote this political party but...

> What this foreign government is doing is bad but...

> I don't support the actions of this group but...

> I am not a racist but...

How about you stop being a coward and just say what you think without this moral posturing of "first let me signal I'm not a bad person before I make this argument" bullshit. The validity of your argument should be based on its own merit. Whether you are actually a goody good human bean is irrelevant.