Will you be aligned with his perspective when he eventually supports a BBB bill?
The situation with Manchin is really similar to Bart Stupak during the Obamacare... conservatives loved him when his concerns on public funding for abortion put the bill in peril, only to harass him and make death threats after eventually supporting the bill once his concerns were allayed.
Similarly, conservatives like Manchin now, but will drop him like a hot rock when they eventually coalesce around a bill they can all agree on.