Are the Habashis connected to the Masons, and what is the proper way to deal with them in Islamic centers in Western countries, especially when they seek to defame others?

The Habashis are a deviant and misguided sect. It is not possible to definitively assert their connection to Freemasonry without proof. It is sufficient, for the purpose of warning against them, to clearly and fairly explain their misguidance and deviation. Your silence regarding them is corrupting, as it leads new Muslims to be deceived by them. It is incumbent upon you to warn people against them and to publicize their true nature, seeking assistance from scholars.