Block default endpoint users

<?php
add_filter('rest_endpoints', function( $endpoints ) {
	if ( isset( $endpoints['/wp/v2/users'] ) ) {
		unset( $endpoints['/wp/v2/users'] );
	}
	if ( isset( $endpoints['/wp/v2/users/(?P<id>[\d]+)'] ) ) {
		unset( $endpoints['/wp/v2/users/(?P<id>[\d]+)'] );
	}
	return $endpoints;
});