Currently, there is a very effective push by people who want to weaken the government enough to supplant it. They are giving themselves ideological coverage by claiming they protecting people from interference.
No it isn't - OP didn't say everyone who promotes that idea wants to weaken the government, but rather those who wish to weaken the government are promoting that idea.
That is a very big generalisation. There are many legitimate reasons for reducing government interference and reducing the size of government.