Your only evidence for saying that the angels aren't involved in the rapture event is that it doesn't specifically mention the angels in 1 Thess 4:14-17, but it's silly to think that every passage about a certain event has to have the same details or else they can't be about the same event. We've discussed the difference between Matthew 24:31 and Mark 13:27, for example. Do you think those verses are referring to two completely different events? Or does Mark 13:27 give an added detail about an event (gathering of the elect by the angels) that Matthew 24:31 doesn't include (gathering from uttermost part of the earth and not just from the uttermost part of heaven)?
Are Matthew 24:31 and Mark 13:27 the same event ? Yes, course.
Matthew 24:31 and Mark 13:27
and Deuteronomy 30:2-6 are all talking about the same event. (if not, then that leaves you to explain when Deuteronomy 30:2-6 will take place.)
Go to Deuteronomy 30:1-6. Understanding what is meant in verse 4, explains what is meant in Mark 13:27 regarding the to the uttermost part of heaven. It is talking about from the nations of the world where the Jews, the seed of Israel, have been scattered.
"If any of thine be driven out unto the outmost parts of heaven,"
They were not scattered to literal heaven where God's throne is, but into the nations all around the world, even to the most distance nations from the land of Israel.
Deuteronomy 30:
1 And it shall come to pass, when all these things are come upon thee, the blessing and the curse, which I have set before thee, and thou shalt call
them to mind among all the nations, whither the LORD thy God hath driven thee,
2 And shalt return unto the LORD thy God, and shalt obey his voice according to all that I command thee this day, thou and thy children, with all thine heart, and with all thy soul;
3 That then the LORD thy God will turn thy captivity, and have compassion upon thee, and will return and
gather thee from all the nations, whither the LORD thy God hath scattered thee.
4
If any of thine be driven out unto the outmost parts of heaven, from thence will
the LORD thy God gather thee, and from thence will he fetch thee:
5
And the LORD thy God will bring thee into the land which thy fathers possessed, and thou shalt possess it; and he will do thee good, and multiply thee above thy fathers.
6 And the LORD thy God will circumcise thine heart, and the heart of thy seed, to love the LORD thy God with all thine heart, and with all thy soul, that thou mayest live.