We need segwit sooner or later in order to make the lightning network work, and also to make blocksize increases without risking quadratic hashing exploits, so why not just get it done already and roll it out?
Sooner or later we'll get segwit, this is only delaying history.
Oh and I don't discard that once Jihan and Roger get tired of making millions with alts, once LTC, ETH etc are at all time highs, they'll say "whoops, you were right" and then they'll short the altcoin market and long BTC as they start supporting segwit.
Forget about Segwit/Lightning. Nobody wants the second-rate hack with second-tier vaporware on top of it. In the real world, BTC is about to go below 50% total crypto market share. The mempool just passed 100K over the weekend, causing huge delays for transactions (with Core fanbois screaming "PAY HIGHER FEES", as if that will help everyone).
ETH, XMR, DASH are now officially taking over. Thank the core devs when you get a chance.