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.