QCs are in all major data centers already. Although there is not much you can do with them, but you can use them. IONQ is considered the leader right now in QC. Look them up, very interesting stuff they are doing. They just partnered with astrazeneca to start developing useful applications. They will also demonstrate hybrid algorithms next week where they offload some stuff to QPUs to speed up models. I would say within two years QCs will start being useful.
Before Elon took over Twitter child porn and human trafficking was running rampant all across Twitter, you can do the Google search yourself to read up on it. Advertisers sure didn't care about that. I think there are many reasons to not like Elon, but I'm glad he is not giving in to this attack. Pure politics as usual.