Unable to dequeue a plugin script. I think I’ve tried everything

Another option is to use the script_loader_tag filter to catch and remove the actual HTML tag before it is output, eg.:

add_filter( 'script_loader_tag', 'remove_social_login_frontend', 10, 3 );
function remove_social_login_frontend( $tag, $handle, $src ) {
    if ( 'wc-social-login-frontend' === $handle ) {$tag = '';}
    return $tag;
}

Note you could also do this via a string match on the URL via the $src variable.