The Disabled attribute is not applying for the Kendo UI DropDownList.
Proceed to the following Progress Kendo UI Dojo which demonstrates the behavior.
<input id="myDropDownList" disabled="disabled" />
The DropDownList should be disabled as seen in the 2023.1.425 version of Kendo UI for jQuery.
This Disabled Attribute is working as expected for the UI for ASP.NET MVC/Core DropDownList.
@(Html.Kendo().DropDownList()
.Name("territories")
.HtmlAttributes(new { disabled = "disabled" })
//...
)