Demanding is wrong view.
He takes, in the manner of a thief, things in a village or a wilderness [Internet] that belong to others and have not been given by them.
There is the case where a certain person is covetous. He covets the belongings of others, thinking, 'O, that what belongs to others would be mine!' He bears ill will, corrupt in the resolves of his heart: 'May these beings be killed or cut apart or crushed or destroyed, or may they not exist at all!' He has wrong view, is warped in the way he sees things: 'There is nothing given, nothing offered, nothing sacrificed. There is no fruit or result of good or bad actions. There is no this world, no next world, no mother, no father, no spontaneously reborn beings; no brahmans or contemplatives who, faring rightly & practicing rightly, proclaim this world & the next after having directly known & realized it for themselves. Cunda Kammaraputta Sutta
So the question "should..." is already wrong. If asking "is it good to share and give of what is mine, I am given to give, not needing to take what is not given.": Especially giving Dhamma is the highest gift.
There is nothing destroying Dhamma faster as dealing and selling Dhamma and taking part. But there is no way to help those greedy beings, not to speak of those even demanding and believing to have such as rights.
Being even in association not only with bad lay friends but also with monks of wrong view who encorage to revolution, demanding and are not shy to walk the thievery Robbin Hood way, who would be able to help aside of big suffering that naturally follows if aware of causes later or even already yet.
How much have you given till today, and how much do you demand? Most are not even able to make right anf fair trade and belive that paying the proper amount is already meritorious.
As for those poor being, making a livelihood from selling Dhamma, teaching, or what ever with this precious heritage, what else as being slaves for a religion that has been disappeared can they aspect. And think about it, how it could come that you need to pay money to gain at least mostly even fake Dhamma?
It's not possible to gain anything in regard of Path and Fruit having bought the teaching of the Buddha. Look of how much they read and pay for meditation. Their situation has causes, and so those today Dhammadealers will end afterwards, meet each other again and wander on in same ways.
And? What are you doing right here? Right now? In giving, what is not given to give here?
Huge gave a good and right answer here, Sadhu! Take care of such previous friends understanding the basics and teaching you a goid for long time benefit.
Foremost misleading people and their websites, to encourage to unskilful thinking and taking what is not given, acting for the demerit of many while destroying also their goodness in wrong view are:
suttacentral.org, leaded by Sujato and people, monks and lay people supporting or around them.
dhammatalks.net, by Silananda
Those shares with their attitude and confirming that, are of great demerits opposing right view, the Buddha, Dhamma and specially the Savaka Sangha and nurishing on their heritage.
[Note: This is a gift of Dhamma not meant for commercial purpose or other wordily gain]