Good to see you using platitudes rather than arguing any of his points. Congrats on strawman debating.
Why on earth would the EU change because of a hard Brexit? A hard Brexit will cause them a small amount of short term damage, and a lot of long term benefit. The financial centres in Germany and France would be celebrating. Ireland would be really the only ones hurting long term. The UK has been quite lucky that the EU has been relatively kind in many of their negotiating stances.
And before you use @Humble_Minion’s points, a number of those don’t apply since they’re issues with the euro, not the EU.
As someone who has lived in the UK, I would most certainly argue that the EU is fine. Does it have areas to fix? Sure. Which country doesn’t? The EU has created the third largest trading block in the world, can influence events throughout the world, has seamless internal travel and trade, not a single internal war (as you agree) since WWII, and has enhanced the quality standards of things like food production and equal rights.
Frankly, your statements feel like the strawmen that the Leave campaign used, which were frankly mostly blaming the EU for things the UK had responsibility for. But then, that’s not to be surprising when for 20 years UK politicians have used the EU to blame for UK issues. Its surprising how many British voters think the EU was responsible for the UK’s austerity budgets.