The disadvantage you alluded to, and i replied to, was your quote from the videos comments section that "we must have two layers of problems" my reply was equally ambiguous as i didn't refer to any problem specifically, just like the comment you quoted.
Specifically that an EU "problem" how ever you want to define that applies to everyone in the EU, whereas a UK problem effect only the UK.
And the wining parties (not that there's much wining in the EU as most decisions are arrived at by consensus) in the EU still have to inhabit the same EU and face the European people, in the UK laws and regulations can be passed against the will of any one constituency or region, even to their detriment, and it still takes effect, for example in 2007 when the government decided that there would be no Barnett consequentials in relation to the more than £7bn of public spending allocated to deliver the 2012 London Olympic Games.
Because it's not just as bad in the UK it's worse, arguably it's far worse, yet people want to give more power to a system in the UK that's worse than the one they're complaining about.
No, it's really not, when %12.6 of the vote gets you 1 MP and %4.7 gets you 56 MPs has that given the %12.6 more say or less?
The real irony will come if there's a vote to leave, it will be ironic if the United Kingdom Independence Party (UKIP) leads to the eventual breakup of the United Kingdom.