So like me saying I am a woman?I'm going to give you the benefit of the doubt here, because it seems like you aren't aware that the term "free thinker" has lost all meaning due to how it's been co-opted by cookers/anti-vaxxers/conspiracy nuts.
It's like how North Korea calls themselves the "Democratic People's Republic" of Korea. You can call yourself whatever you want. Doesn't make it accurate.