I am genuinely interested why do you think that SAGE are recommending this? Just for the fun of it?
Do you not think they are tired, in need of a holiday? Have kids they want to play with on sunny beaches?
It is moments like this when I am truly glad it is SAGE making the decisions, and it is not left to popular opinion (on this thread)
If you frame it as a loss of rights that will be gone forever, of course that is going to feel alarming but if you consider that this is a short term decision based on protecting the country, then you come to a different view.
I will be right there with you in five years time if ANY of these restrictions and laws are still in place without use or need. For now I see it as emergency legislation there to protect all of our progress, and to give us some hope of normality again. IF in July things are looking good hopefully it will be possible to travel after then. But don't count on it.
I understand why people are upset, we have had a tough year.