Your first link is a fine example of the kind of projection that goes on around George Soros. Let's trace the links around how you arrived at the conclusion that an American citizen is financing Islamists in Europe.
Over the past decades, he has donated his time and money to create the Open Society Foundations with the aim of improving civic society and democracies around the world. The OSF have two dozen programs, ranging from Education Support to Fiscal Governance to Public Health:
https://www.opensocietyfoundations.org/about/programs
One of these programs is the Human Rights Initiative, which has hundreds of projects and focus areas around the world. The scope of projects is as wide as human needs: disability rights, government accountability, etc.
One of these projects is Islamophobia in Europe. The OSF website explains in detail why this is a problem, why there's not enough data about it, and what OSF is doing:
https://www.opensocietyfoundations.org/explainers/islamophob...
In France, a NGO called CCIF works in this field:
https://fr.wikipedia.org/wiki/Collectif_contre_l%27islamopho...
CCIF has applied and received grants from OSF. It's important to note that CCIF is not otherwise affiliated with OSF or Soros. Thousands of organizations receive grants. CCIF is a recognized non-profit in France.
Within some CCIF subgroup, there are apparently people sympathetic to the Muslim Brotherhood, a large and rather loose transnational organization that promotes an Islamist society (although the Brotherhood claims to be a peaceful organization and condemns all violence).
So, the connection between Soros and the Muslim Brotherhood is filtered through several layers of NGOs and grant boards. The number of grants made by OSF over the years must be in the hundreds of thousands. It's ridiculous to claim that Soros is personally involved in financing Islamism. (As a Finnish taxpayer, I probably have as much involvement in indirectly supporting some Islamist group -- there must be a botched aid project where Finnish money ended up in the hands of Somalian militants, for example. It's just statistics of trying to do long-term good in a very flawed world.)