A common failing among political activists is the inability to see political decisions and situations from the point of view of those they may disagree with. Activists are by their nature ideological rather than pragmatic and frequently the decisions made by political leaders who have moved beyond their activist roots are made based on considerations which are purely practical and are based on only a very loose understanding of what will really satisfy the activists who make up the various grassroots constituencies they are trying to appeal to.
So if you're a highly motivated Liberty Republican, a Ron Paul supporter or an ideological libertarian working within the Republican party, I'm going to ask you to try to think outside the box for a little while here while looking at the selection of Paul Ryan as Mitt Romney's vice presidential running mate.
From our liberty activist perspective Paul Ryan is pretty much just another establishment Republican hack. With 7 terms under his belt he's been in office too long. His voting record is utterly uninspiring and shows no real sign of acting on fiscally conservative principles. He's a big military supporter and never saw a domestic security clampdown or foreign military adventure he didn't like. Plus he's about as hardcore a religious conservative as you can find in office. Despite all these indisputable facts, I'm going to suggest that Paul Ryan is still a major concession to the liberty movement within the Republican Party.
Remember that the party establishment is not ideological. All they care about is getting things done, particularly getting their party in power and being able to satisfy the constituencies which keep them in office year after year. They are not inherenly hostile to the best interests of the country or to ideological principles, but they are more loyal to those who provide the enormous amounts of money it takes to get elected or who can provide them with blocks of reliable votes in their home districts. They are made very nervous by any politician who seems too ideological and whose decisions are likely to be unpredictable and deviate from the general strategy of maintaining power and avoiding change.