Are you saying that Texas birth certificates have no raised seal on them? How do they protect against forgeries? How does a person know whether a Texas vital record is just a Photoshop?
Depends on the authority that issues them. Some county clerks order paper with a slightly raised border, or other feature, already on it.
How do they protect against forgeries? How does a person know whether a Texas vital record is just a Photoshop What makes you think that seals weren't routinely forged, or stolen, or a deputy clerk given $10 a page for a stack of the special paper birth certificates, already sealed?
The jurisprudence of the entire country is moving away from things like seals, much less raised seals, which were meant to imitate wax seals, and has been for decades. Does that make it easier to forge documents? I'm sure it does. But legislatures, and courts, has decided, at least since the 1970s, that the increased risk of fraud is more than offset by the convenience of modern technology.
Raised seals on official documents were very important back when the rules of evidence generally precluded the admission of a copy of a document. That rule arose when a copy was made via hand writing. There was simply too much room for discrepancies, intentional or not. A government document, under seal, and all seals were raised back then, was generally admissible, even if it was a copy. Once photocopiers became ubiquitous, the rules rapidly changed, and copies became generally as admissible as the original. But raised seals don't photocopy, unless you shade the raised portion by hand, and then the seal is still often illegible. So people moved to inked stamp seals, which photocopy just fine. And when laser printers became common, printing the seal with the printer became common too.
You can certainly debate whether all of that was good policy. But it has been going on decades, and to conclude that it is all part of some vast conspiracy to aid BO is just ridiculous.