He's a reference point, not a cause...well, not entirely. Him, Elon, Oracle, Salesforce, etc., all significantly increased their footprint in Austin during COVID, and they brought with them a flood of right wing tech douches. For his part, Rogan brought every edgelord talentless "comedian" to town to perform in his new club. Now "Austin Comedy" is almost and adjective for comedy based exclusively on being racist and offensive.