(1) Just because a country isn't in the Schengen area doesn't mean that you don't have freedom of movement. Switzerland isn't but via EFTA most EU citizens are free to live there -- the Eastern bloc included. Same with Norway.

(2) The accession process is meant to smooth the transition, nobody is suggesting opening up the floodgates tomorrow and seeing what happens, that's hyperbolic. Any abolition of movement restrictions would have to be gradual to be successful, and you could use EU accession as a model.

(3) EU member states are required to meet certain very high standards on social services and welfare. The whole bloc has socialized medicine. Member states have reciprocity agreements ensuring migrants have access to the same level of care they'd get back home (look up EHIC cards for instance). This is not much different from how Canada administers social programs between provinces.

Europe absolutely has free social services, democracy and freedom of movement -- and a very successful economy. The GDP of the EU is 21T PPP adjusted in 2017. The US is 18T.

(1) Not that free. You can enter for up to 90 days, without right to work or settle, with mandatory registration where you stay. After that, you have to leave, if you don't have the permit to stay longer or work. The only advantage EU citizens have is, that they can get the permit in Switzerland; all the others have to go to embassy in their home countries.

Switzerland is a classic model of controlled borders and mandatory visa regime, which in some cases and for some purposes can be waived.

(2) What happened in Germany and some other EU countries in 2015, is antithesis to gradual opening of the border.

(3) That's only for the citizens of EU; not for citizens of third countries, i.e. not exactly what proponents of open borders fight for.

They could have moved to the UK but not all of them did.

The weather is bad there.. That actually is an important factor.

Note how you didn't give any single argument, just name-calling...

He cannot, except some feel-good and virtue signalling slogans. The resources for social support in most developed countries are limited even for their own citizens; taking anyone would quickly overwhelm the system, that's a basic math, even without a napkin.

For people, who do not have a good visualisation skills for numbers, there's this video: https://www.youtube.com/watch?v=LPjzfGChGlE

The point is, if you want to help the people in the rest of the world, you have to help them in their countries, which I wholeheartedly agree.