Regulations never (almost) get loosened. Its time to adapt.
For some that will mean exiting trading: but given the low interest rates offered on savings and other forms of investment this is not the worst time in history to be forced to increase capital in a trading account. Let's be frank, most of those guys would have been wiping out their accounts within a year anyway.
Long as you don't increase your capital risk if you have to increase your capital to adapt to ESMA leverage, what harm?
Agree Tom re regs. As you say, rarely loosened.
I disagree re margin. Rather than a across the board change in margin, why not look at those who have been trading profitably or have not blown up/ even had a margin call. If they've been doing that over an extended period of time, why suddenly change what they can do and force them into riskier markets/overseas providers with less protection..which is where many who can trade and many who can't are going. Makes no sense to me.
It's like the pattern day trading rules in the US. If you are just managing swing trades on stocks and happen to be stopped out on the day you enter your trade, even thought you are managing your risk well, you are penalised by having it classed as a day trade.