No, it can not force you to buy a product. It can force you to pay a tax, under conditions set by the government.
Whether it should, to what level, or under what conditions, honest people may disagree.
No, that's a lie; the "force you to pay a tax" if you don't is a threat against your freedom, if not your life*.
To claim that it is not forcing you to buy a product is to claim that someone mugging you saying "if you don't give my your wallet, I'll kill you" (assuming you comply) is not theft because you're giving it to them.
* Can the government kill you for failure to pay a taxes? Yes, there is precedent; the Waco incident was started because the ATF claimed that they possessed untaxed firearms -- what makes that more outrageous was that the ATF's claim was arguable because they did have licenses and the taxation requirement is only for firearms that are [to be] sold.