in about half a year's time, 2M hard fork comes about.
More like three months...
If SegWit is worth it, it should be activated without any reservations like going for hard fork thereafter.
In an ideal situation that would be the likely outcome, but the point is that the need for a change/improvement is higher than it was ever before. No matter how we think about the miners, which mostly isn't very positive, they are part of the game, and thus Segwit2x is more or less the closest we can come in terms of a major agreement. Overall, it's not a bad proposal at all, it's perfectly workable.
That's the reason why the Bitcoin Core team will likely reject this proposal, and they will be right
That's what you hope...