Is everything over now that the US gave heavy weapons to the PKK?

I remember the discussions in Turkish media prior to Operation Euphrates Shield regarding Turkey's entering Syria: How could we enter Syria despite the U.S. and Russia? They would tear us apart in three days. Are we going to enter war with Iran and Russia? Are we not aware of the realities at all? It's not only those opposing President Recep Tayyip Erdoğan that were saying and writing all this, but so many “experts.” Let alone the one year prior to the operation, there were many who said and wro