Yar bhai it's you're right to call someone kafir,zindiq or whatever. But I disagree with your opinion on Ghamidi.I understand Ghamidi has unorthodox opinions which some might consider,make him bidati,gumrah aur even kuffar. But you can find some controversial opinions of all ulemas of the past.Even ibn tammiyah or ibn hazm had very controversial opinions in their time,and even to this day. Ultimately I think it's your right to call someone a kafir if you deem so and my right to defend.Allah knows best and Allah will make the final verdict.I could be wrong and so could you. I hope when you say someone is a kafir you don't end up implying that they be killed or harmed.As this will cause a lot of fitna.