Preview:
$(document).ready(function() {
    // Select the div with the class 'radiobuttonlist'
    $('.radiobuttonlist').each(function() {
        // Find each input within the radiobuttonlist div
        $(this).find('input[type="radio"]').each(function() {
            // Get the current input
            var $input = $(this);
            // Get the corresponding label for the current input
            var $label = $('label[for="' + $input.attr('id') + '"]');
            // Create a new div with class 'radiowp'
            var $wrapper = $('<div class="radiowp"></div>');
            // Wrap the input and label with the new div
            $input.add($label).wrapAll($wrapper);
        });
    });
});
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