This is a pretty interesting point that i haven't though much about before.
I suppose one problem with confiscation vs. taxation involves incentives. Taxation incentivizes governments to create healthy economies to increase revenue whereas confiscation incentivizes police forces to violate property rights arbitrarily.
Another problem at present is there is much less oversight of confiscation than of taxation and maybe confiscation is less predictable than taxation.
I suppose one problem with confiscation vs. taxation involves incentives. Taxation incentivizes governments to create healthy economies to increase revenue whereas confiscation incentivizes police forces to violate property rights arbitrarily.
Another problem at present is there is much less oversight of confiscation than of taxation and maybe confiscation is less predictable than taxation.