Is the UK government secretly sticking with a policy of herd immunity?

So in the UK right now, you might get fined for going to the park, but meanwhile, the government is...

- allowing flights to arrive into the country, including from virus hotspots, with no health checks for passengers.

- not doing sufficient testing.

- keeping many non-essential businesses open.

My impression is that the government has been trying to make everyone feel as though there is a lockdown and that the plan is to eliminate the virus, when in reality they’re still secretly sticking with the herd immunity strategy.

Anyone else thinking this?

Perhaps it’s too late now, and herd immunity/letting the virus spread, slowly, is the least bad option...?