It was always going to be the case that this (non-binding) referendum was going to provoke a clash between two forms of democracy in this country. Both are acceptable, or should be, most of the time, so why MPs should be denied a say on this particular issue is perhaps a little bizarre. OK, the referendum result deserves to be respected, but why fear that MPs will block it? It's often been said that May would go ahead with Brexit because it would mean her job otherwise. Well, that applies to MPs too presumably. How many would risk rejecting the will of the people so clearly? Was this not about restoring parliamentary sovereignty anyway? Or should we now assume that the UK operates democracy primarily by referendum?
Having said that I can understand Theresa May's decision to an extent. The will of the people as a whole was clear on June 23rd and Brexit of some form is now inevitable. What is *not* so obviously democratic is this idea that MPs should be allowed little to no say on the process until *after* it's been completed. Presumably, this would put MPs in an impossible situation of having to reject something for which there's no mechanism to put in place many replacements.
Actually, what troubles me more is that apparently I now have literally no say in the future of my country at all, unless I utterly reject everything I thought to be true when I cast my vote to stay in the EU on June 23rd. I lost. I get that. But in a democratic country the loser isn't ignored, he's listened to, and still gets a chance to shape the decision. Apparently, now, any attempt to question whether the current approach to Brexit is the correct one is an affront to democracy, or bordering on treason, or somewhere in between. It is neither. If not on the concept, which as I have said is effectively settled, then on the execution, it's utterly undemocratic to assume that the people who voted for Brexit voted for Theresa May's specific version from it -- who we should remember had to undergo a Damascene conversion to support something she was standing against.
Whatever Brexit means, I hope it works. But I don't see that I, or any other Remain voter, should have no say whatsoever in shaping it. Parliament in particular should be far more heavily involved. Unless you are scared of our democratically-elected representatives deciding on something you don't like?