I am not sure LFTs are very reliable. My wife and I basically locked ourselves down when my grand-daughter, whom my wife had visited, tested positive last Friday. Two days later, we both tested negative but my wife felt a bit under the weather with a cough. Two days later, feeling perfectly well, my wife tested positive. She is perfectly well now but still testing positive while I am consistently testing negative.
I read that 50% of colds are Omicron. I suspect very many positive cases of Omicron are no worse than colds. In our immediate family, 4 people have tested positive, 3 with temporary minor symptoms and 1 with basically a case of 'flu.
We are playing by the rules but our society cannot go on like this. We already have inflation, massive debt and a stalling stop-start economy. If we need more hospital beds, build more, but don't shut people (including essential workers) away for testing positive to what amounts to a minor illness for many of us.