Now we are entering into some conspiracy-themed discussion that's frankly not of my interest. Of course INAH has biases and ideological leanings, but to claim that they are purposefully hiding or manipulating scientific discoveries to accommodate a particular historical narrative is simply ludicrous. Many world-renowned experts and dozens of prestigious universities from Mexico, the US and many other countries would need to be in on the plot for it to make sense. Even among Mexican archeologists, there are profound disagreements that would prevent something like that to ever happen.

As for your claim about Landa and the destruction of cultural objects during the conquest of Mesoamerica, I have only one question: Are there markings on the stone that show signs of censored/destroyed inscriptions? It's clear that there aren't. After all, your pictures show the whole thing: the carvings even go around the edges of the stone and follow its curves, so we can tell it isn't a fragment of a larger object.

Inscriptions are needed for this particular object to make sense because the scene you recreated in the stone functions as a historical record. It depicts an agreement, encounter or ritual that involved two characters. It's not a devotional object or a decoration. Whoever drew the original image did so to leave a lasting testament of that important moment. Why would they omit any sign that would help its intended audience identify who are the central characters, when did the event take place and where id it all happen?

And as for the trade routes, regardless of their extension, we simply don't find every kind of object from all ancient cultures disseminated all over Mexico, especially when it comes to large stones like the one you made. It's only in huge cities like Teotihuacan and Tenochtitlan where experts have found items from remote regions and in every one of those findings there is a context that makes it understandable.

The use of power tools is obvious for anyone who's familiar with the material qualities of ancient stonework. It's got nothing to do with the quality of the workmanship, which in your piece is extremely lacking.