But apple isn't paying the due tax, due to loopholes, therefore affording them to lower their prices and providing an unfair advantage over other companies that are doing the right thing.
Actually, you should. If every person in the USA had the means to avoid paying huge chunks of their taxes through some vague, convoluted, loophole that required many hours/days for teams of lawyers to figure out, the government would go broke.
If you did it, they'd close the loophole and throw you in gaol, or at least start making you pay your proper taxes.
If Apple paid it's taxes, the US government could actually afford a proper medical system, and you'd all have free (basic) medical cover, and the insurance companies wouldn't be taking you all for a ride .....
At any rate .. you are deluding yourself if you think that lowering taxes will result in lots of companies happily re-establishing in the USA if taxes were lower ... assuming that a company is making 30% profit, a product costs 30%, labour costs the other 40% .... and China or third world countries can slash the labour cost by 90% ....
Apple moved production overseas ... that's the training ground for future scientists/engineers that are designing the products.
Apple is already moving overseas, if not now, in the next 10 years ... because that's where the engineers and scientists are (will be). Arguing in Apples favor because of good ole US patriotism to US companies, is just giving into Apple's good ole patriot-washing, and it's just pure folly.