Not if they are doing so unrepentantly. We all struggle with vice and temptations to sin, and sometimes we stumble. But you can’t do this sort of thing and claim that it is not a sin while still claiming to be Christian.
Well said.
It is one thing to be flawed (as we ALL are) know what your flaws are, and wish to change, even seeking help.
But it is quite another thing altogether to encourage others to see your behavior as normal and justified, and to feel no obligation whatsoever to alter your behavior.
Same applies for conservatives voting for liberals but that doesn’t stop them either. Nor do they accept the truth of it.