And there is the false equivalency that you have been striving for by torturing the definitions of words.
Not one single post of mine has disputed a single definition you've given as false in any way, shape or form. I implied that the dictionary definition is confining. I also stated that it was insufficient. I also implied that it was not comprehensive as compared to the encyclopedia.
Shame me for that if you like. Do NOT however shame me for something I'm not doing. I don't consider atheism a religion, but I also don't think calling it a religion changes what it actually is. Terms get assigned after the concept is created. It doesn't work the other way. Atheism is what it is regardless of what category we try to fit it in. In other words, its a pointless argument that means nothing at all to anyone. If categorizing atheism as a religion would somehow alter your personal beliefs/philosophies surrounding atheism then I submit you have much larger issues to address within yourself.
Atheism is just a lack of belief. The only thing that all atheists share is a lack of belief in gods. Yes, there are some atheists who go further and say that gods don't exist, but that isn't a requirement for atheism.
So, instead of allowing for the OP to possibly, maybe, probably be talking about an atheist of a particular stripe, you instead insist on stating and restating the dictionary definition to them of what the most basic qualifying factor of atheism is in an attempt to force them to be talking about ALL atheists and therefore you feel safe to respond to them as if they are using the dictionary definition. Even though they clearly are not. You just pretend you don't know any better. But you do. Because that is an argument you can 'win' you choose to engage in THAT debate instead of responding to what they are 'improperly' stating.
The person who is skeptical of the claim that gods exist is not under any burden of proof to demonstrate that gods do not exist. The burden of proof lies with those who say that gods exist.
Actually, the burden of proof is never on anyone. Proof is not a thing. There is only convinced and unconvinced. The standards by which any individual human becomes convinced of one thing or another are internal and subject to change at any time for any reason.
If you require me to provide proof of a claim in order to be convinced, so be it. But I am obviously under no obligation to comply, I simply have to live with not convincing you if I don't meet your standards.
Conversely, if a theist requires you to prove a lack of gods (yes, I realize its silly) before they abandon them... guess what? You're under as much obligation to comply as I am in the previous example. That is to say, none at all. You will obviously fail to convince, but that's your choice.