@MoeBritannica My personal recommendation is to never contribute to a project that says it's "open source", when there is so many free software projects to contribute to.

The only thing you should be concerned about the lead dev is if that developer cares about freedom - it seems that many developers who are clearly racist don't care about freedom, but those who care about freedom usually aren't racist (after all, racism is anti-freedom).

There is not a single "GPL" license, there is the GPLv1, GPLv2 and GPLv3 as well as the LGPLv2, LGPLv2.1, LGPLv3 and AGPLv2, AGPLv3 - I personally recommend the AGPLv3-or-later; https://www.gnu.org/licenses/agpl-3.0.en.html or the GPLv3-or-later; https://www.gnu.org/licenses/gpl-3.0.en.html

What you should be wary about is projects that claim to be "open source" and are GPLv2-only licensed for no legitimate reason - such developers often hate freedom and want to stop freedom from being ensured by {A}GPLv3-or-later, but the only way to do that is to license GPLv2-only and to invite proprietary software developers to incorporate it into their proprietary software, by never enforcing the license.