The issue is not the number of replications. 2 or 3 would be enough if they has strong data and methodology, and were true replications.
There are dozens that fit that description, all of them with the original technique of electrochemistry and Pd-D. Cathodes in different labs showed the same ratio of loading to heat (McKubre and Kunimatsu). When cathodes have been shared from one lab to another, in some cases they have produced exactly the same level of heat. The same loading level versus heat, and current density versus heat, has been observed in many labs. See Figs. 1 through 3:
Tritium has been observed in over 100 labs.
In short, the data shows what you demand, but you refuse to look.
many attempted replications showed negative results
Not only do you refuse to look, but you make up stuff like that. I'll bet you cannot list more than 10 replications done by electrochemists which showed negative results. There is a long list of "replications" by non-electrochemists which failed for well understood reasons, such as confusing the anode and cathode.
When you refuse to look at the data and you wave your hands and invent "facts" like this, you can prove anything.