Salam
Most don't but some argue God is irrational by definition. Some from viewpoint vengeance and mercy can't both be ultimate, while God is One, and needs to contain ultimate form of each. Others argue, God is timeless, and you need time to make decisions. Others argue, God does not have courage or other human virtues, because its invulnerable, and there is an argument I made that lead me to temporary atheism, that value has to be earned and God can't earn value because he would be absolute in it without room to earn it.
Not all atheist philosophers but some do. Very few now do the "paradox of omnipotence" that God cant kill himself, type thing though. You are right though most don't. But some still do.