function sw_custom_post_type_includes($query) {
    // No need to define this. $post_types_list[] = '...'; does the definition by itself
    $post_types_list = array();
    $args = array(
        'public'   => true
    );
    $output = 'names'; // names or objects, note names is the default
    $operator = 'and'; // 'and' or 'or'
    $post_types = get_post_types( $args, $output, $operator );
    // Why looping through the post types array and assigning them to an different array?
    // This way you're just doing $post_types_list = $post_types.
    foreach ( $post_types as $post_type ) {
        $post_types_list[] = $post_type;
    }
    // get_post_types() -> Use the singular as I did: get_post_type(), else you can't search in_array()
    if ( ! is_archive() && ! in_array( get_post_types(), $post_types ) )
        return;

    $query->set( 'post_type', $post_types );
    return $query;
}
add_filter('pre_get_posts', 'sw_custom_post_type_includes');