Again, you cherry pick.Saint Clement of the Eucharist:
Teaching of the twelve Apostles (the Didache) 9:2,
"regarding the Eucharist....let no one eat and drink of your Eucharist but those Baptized in the name of the Lord; to this, too, the saying of the Lord is applicable: do not give to dogs what is sacred.
On the Lords own day, assembled in common to break bread and offer thanks; but first confess your sins, so that your sacrifice may be pure. However, no one quarreling with his brother may join your meeting until they are reconciled; your sacrifice must not be defiled. For here we have the saying of the Lord:'in every place and time offer me a pure sacrifice; for I am a mighty King, says the Lord; and my name spreads terror among the nations"
On the other hand.... from one of your own links...
"... in light of the texts Mark 2:28 and Luke 6:5 it is seen that Jesus himself (as the Son of Man) claimed to be the Lord of the Sabbath, and that day fell on the seventh day. Some early Christians observed Sabbath on Saturday, while others gathered for worship on Sunday. However, in AD 363 a seventh-day Sabbath was prohibited by Canon 29 of the Council of Laodicea."
It evolved and once an official Roman denomination, they had to distance themselves from the Jews, who were always a problem.
The Jews never sucked up to the Roman Emperors like the Romanists.
This was all a power grab. Early Christianity was gradually corrupted -- in order to please civil powers -- from Constantine through Mussolini.
Now you have a "religion" with a bank and diplomatic immunity.
Every single early church writer that you quote would be shocked and saddened.