The cross we have on dozens of monuments and buildings? If you are a Christian I don't see an issue with wanting to wear it during service. Just like any religion's iconography could be worn/displayed. It doesn't come up on the ADL's list of hate symbols. I haven't been able to find proof of association with hate groups outside of the political guy having it as a tattoo, a very common and popular tattoo. This is literally just propaganda trying to paint any Christian as a white supremacist.