It is unlikely the shooter considered any degree of pragmatism, but Kirk's murder has galvanized much of the right.
On an ideologically level Kirk wasn't much different than a Fox News Republican, I know a few consultant who have worked with TPUSA or got their start there. Kirk was proximally center right, with his void - its is likely younger Republicans shift further right.
We don't fully understand the after effects of Kirk's assassination on a macro level, but there is some early rhetoric from Steven Miller that indicates willingness in the Trump administration to suppress leftist organizations where sufficient pretext exists.
Trump hasn't exactly been shy about his totalitarian leanings. If he could emulate Adams and pass a new alien and sedition act, he would. I just don't think he's educated enough to know that even happened.