People are certainly entitled to their own personal opinion. Do not forget the discussions in this forum a few years ago, many believed laws criminalising premarital sex and cohabitation would never pass in Indonesia, boom yet they did just months later. And yet, in this thread a few people still query the role of the boarding school in terrorism, suicide bomb in Indonesia even the fact is presented by the police. You know who you are.
In the modern era, like the title of this thread, the groups like Hizb ut-Tahrir Indonesia (HTI) and remnants of Jemaah Islamiyah have openly called for the re-establishment of a caliphate and their ideas continue to circulate online, in religious schools, and among disillusioned youth. Aceh is a done deal. Other proponent of Caliphate (khilafah) is Majelis Mujahidin Indonesia (MMI), Jamaah Ansharut Daulah (JAD). In the past FPI, DI/TII, The Darul Islam/Indonesian Islamic Army Rebellion. Piagam Jakarta (Jakarta Charter). There have been a systematic attempt to change the constitution (UUD45) and reshape Indonesian the Indonesia’s foundational ideological symbols (Garuda Pancasila) (Post #21, #22, #27). There was an old and a relatively recent poll indicates that significant number of Indonesians support Sharia law (Post#4, #9, #34). These are all facts, not personal opinion. Typically facts should be met with facts, not personal opinion.
As long as grass roots boarding schools continue to indoctrinate children and the movement gains momentum, supported by the political party, politicians, the direction it’s heading and where it may ultimately lead is entirely predictable. The establishment of a caliphate in Indonesia may not be imminent, might not be in your generation, but it is certainly not a distant possibility and that reality demands vigilance, nuanced policy, and a reminder the benefit of the nation's pluralistic principles.
I've shared plenty of accessible and verifiable links, in this thread and there are many relevant search terms available for anyone interested in exploring the topic further. When responding or refuting these points, please do so in the same manner using credible sources and not relying solely on personal opinions.