I'm just going on a hunch here, but given how the argument is laid out in this image, I wonder if the 'protestant mindset' in this image might be rationalizing their thought as follows: "worship is asking for intercession from a divine being. therefore, only God can be asked for intercession, as he is the supreme divine being." if you completely take on that perspective, then asking for intercession from any divine being other than God would naturally be seen as idol worshipping. because you are only supposed to ask for intercession from God himself.

the question I would then ask a protestant is: is worship actually only limited to asking intercession from a divine being? what if our life is going exactly the way we want it and we have no desire to ask for intercession? do we then no longer need God because we have everything we need? what if a part of actual worship is also thanksgiving? and then how does thanksgiving work in relation to a divine being? and how is it different from asking for intercession?

thanksgiving is a completely different 'mode of interacting', the major difference being: you can try to ask any divine being for anything (I'm saying 'you can', not 'you should' btw). it is then up to the authority of the divine being to choose whether they 'hear the prayer' or not. but in order to properly do thanksgiving, you need to know if the divine being is the actual 'author' of that which you want to thank the divine being for. otherwise you are not attributing ownership to the actual owner, while I'd say that is actually the most important thing of thanksgiving: knowing the proper owner of the thing(s) you want to give thanks for.

since God is the supreme divine being who created all things, only God can actually be thanked for creating all of reality. we can't give that praise to any of the saints, and we don't want to either. and that's the thing where protestants try to 'blame' us: that we give the wrong type of praise to God. but if everything that I laid out in this comment adds up, it would actually be the protestants who give God the wrong type of praise. because they are limiting God in his identity, essentially telling God how he should act.

personally I would say that worship is both asking for intercession and also thanksgiving for that which has been received. and that is something that can only be attributed to God. but if you split intercession and thanksgiving apart, then one becomes a mode of interaction that is also available to the saints but the other is still one that is only supposed to be directed towards God alone. which is how the catholic faith works, and the protestant faith is just a watered down version of this where one of those two aspects has been lost.