“...they don’t even pay attention to it.”
A long time ago, I took a speed-reading course. It was a bit of a fad in the 60s. It does work and it is a useful skill. Senators need people with this skill to keep crap like this becoming law.
Happily it appears that there are some who have read the text of the bill and letting us know what is in it.
If members of Congress wanted to know what is in a bill before they vote on it, they could accomplish this by dividing up the pages in the bill, having 2 or 3 different Senators (or smart members of their staff) read their alloted part. Then they could share their findings, especially the hidden worst parts. ... all before the vote.
Unfortunately, having plausible deniability is more important to them. Same for representatives in the House.