Woocommerce, prevent login after registration and redirect to custom URL

Try this, It may helpful.

function wc_custom_registration_redirect() {
    wp_logout();
    wp_destroy_current_session();
    return home_url("https://wordpress.stackexchange.com/");
}
add_action('woocommerce_registration_redirect', 'wc_custom_registration_redirect', 99);