Doing takfir on an active Muslim is sin
Theres barriers to takfir, takfir is part of islam it separates the believers from the disbelievers excuse of ignorance should be the only prohibition but that prohibition disappears once proof is established upon the individual.
Actions nullfiers a persons iman so does speech you cannot separate the two, simply saying you are a muslim does not mean you are a muslim.
You must believe in the 3 categories of tawheed, you must believe in sharia, you must reject what Allah forbids.
How can you endorse homosexuality and secularism and claim you follow sunnah??
I've seen you mock islam aswell, you insult the sharia, either your a troll or a very ignorant child who is like 14.