In the same way that diabetics need to tightly control their sugar intake, it doesn't mean therefore that need for sugar is up for debate.
Red meat also helps people stay at a healthy weight, lower the risk of heart disease (caused by glucose) and some types of cancer (which feed on glucose). What do fiber and red meat have in common? They are not sugar. You could replace fiber with other indigestible material such as sand, the effect would not be much different.
Big ol' citation needed on that one.
Fiber is more than fine if you actually drink enough water. There are also two types of fiber; some people need one more than the other, or vice-versa.
I know several people with Crohns where fiber has made the biggest difference in controlling it.
Are you a lobbyist for beef? This is not at all what research says, and research has said mostly the opposite for decades.