Sorry, but it is not extreme. It was proposed by the American Heritage Foundation, which is a conservative think tank. It is part and parcel a centrist conservative idea. So much so that my own support for it is dubious. But what I will never support is the extremist actions taken to engage in extreme partisanship in an attempt to keep it from being successful in any way.
It was duly passed and the House must fund the government. It can be repealed when Republicans have enough control to do so. That is the responsible route that is non extreme.
You can never be safe from a government that can keep you completely safe from each other and the world. You must choose.