"Defeatist", now there's an interesting word.
We are not experimenting here, if the plan doesn't work we don't have the option just to opt back in and expect everything to be as it was. If we get this one wrong it's the future of the UK that's at stake. Get it wrong and we could cripple the £, the economy, any glimmer of inward investment and manufacturing would all but disappear. Unemployment would go on the rampage once more.
The keyboard warriors would all be up in arms about how badly the government was doing and how they wished they lived somewhere else.
A vote to leave is a huge leap into the unknown, like playing the roulette table. A vote to stay keeps us at the table with a chance to influence how Europe develops. The odds on our own success are much better in than out.
Europe isn't right at the moment, there are a lot of countries ****ed off about the same things as we are, the bureaucracy, the immigration, the list goes on. Europe will have to change if it is to survive. It's not a reason to leave, it's a reason to fight to change the bad and take full advantage of the good, which is basically what the leaders of all the major parties are saying - love them or hate them.