As an official member of the "Weight Police" I say So what!
You may think those are light weight plastic toys but maybe they are super heavy "Neutrino Metal", you know that stuff from the center of collapsed stars. I hear it's really heavy stuff.
Get the to a scale to know the real load on your tires.
I write a blog on RV tire application and safety. RVTireSafety.com
Also give seminars on tires at RV events across the US. 40 years experience as tire design & quality engineer for major tire mfg. Freelander 23QB on Chevy chassis is my RV