Lightning is faster than these other block chains. If that really is what people want, they will get it with LN.

But I agree that it won't likely take off. First of all, exchanges make more money pedaling sh$tcoins so they are likely to continue ignoring LN and stay with block chains that have a marketing department. Also, the BTC maxi's will continue to call USDT a sh$tcoin and this will keep more people away.

Also note that USDT has been on liquid for many years with little adoption. I think it was also the cheapest and possibly the fastest too.