USB Connector Current Rating for Charging
Your first statement is strangely formulated. It would be more logical to say that the current rating of the USB connector of a USB charger product must comply with the rating of the whole charger.

In short: you can't build a USB charger that says it can deliver 2A if the connector is rated for only 1.5A. That is true.

In the end, if you're looking for type A connectors rated for higher current than the typical 1.5A, here is one: Wurth 614004190021. Rated 3A. Found on Mouser: they have a rated current filter for USB connectors.