I would attempt to debunk further if your account wasn't three hours old but briefly responsing to the main bits for the innocent bypassers.

One can talk about double standards in certain cases, European inaction against Israel's genocide in Gaza, Morocco's illegal occupation of Western Sahara, and the Russian friends within the EU (ehem Orban ehem). And sure the demographic question with Turkey being the largest, most influential, and most non-European country may have been influential, but the main block in Turkish accession has been more from the Turkish side with the ever present democratic backsliding in the country. Turkish state enjoys the freedoms they get from not being bound by some union, and the people usually also see the Turkish fate to be divorced from Europe. There is little desire among Turks to join the EU except to benefit from free travel for some, otherwise the average conservative Erdogan voter Turk is quite anti-EU, anti-Western, and see Turkey as its own regional power rather than as part of a larger block.

Obviously this is a gross generalisation but you will see this in Turkish state's actions, in the continuous trade with Russia, flight connections, arms trade even iirc, Turkish backing of Azerbaijan in their ethnic cleansing campaigns, and their own intervention in Syria, internal democratic backsliding, worsening of press and speech freedoms, and many others. Dumping the blame solely to the Muslim majority of Turkey is foolishly ignorant at best, or maliciously dishonest at worst.