I would say that it depends on how it was used. The way I used "interfering" was the same as using force. Just prior to writing this reply I looked the word up in several dictionaries. There are a number of different definition in all the dictionaries I looked it up in. Both our definitions are correct in every one of them. I thus stand by my use of the word "interfering."
While I consider myself to be a libertarian-Republican, I certainly am glad that I can vote Libertarian in the absence of an exceptable Republican candidate. I would certainly hate it if the only choice were between a neo-con Republican and a liberal Democrat.