Nocoiner friend told me I'm brainwashed and said bye

It seems like I need to check my mental state my fellow Bitcoin hodlers investors and believers. A nocoiner friend who is into traditional stocks for a long while with about 30% profit so far asked me about Bitcoin because I was pretty open about it. So explaining the basics of Blockchain and the inherent value of limited supply I hoped the response that I got was intelligent and leading into legitimate interest. First he says Bitcoin is going to be hacked with quantum computers and so that it's not going to last. Told him it's the best investment since 2009 and it's still growing, getting it's own ETF and traded by large corporations and hedge funds. "Yeah, you're clearly brainwashed" and said bye.

Sad times to be a nocoiner I guess, losing your friends to brainwashing.