The Eclipse (second link) open letter to EU parlament is co-signed by many Open source players. European citizens could try to reach out for some european parlament member by email, inviting him/her to seriously care of these arguments. That is exactly what I"ve done.
(...) The undersigned organisations collectively represent the governance of much of the open source software which industry and society rely on. We offer our collective expertise, including envisioning how these professional organisations may support a more inclusive and effective process to inform the CRA today. The same increase in dialog and collaboration will continue to support the CRA’s successful implementation in this new regulatory paradigm. We are prepared to send a representative delegation to meet with the members now. We appreciate your attention to this matter and look forward to working with you to ensure that the Cyber Resilience Act reflects the concerns and contributions of the entire software industry, including the open source community. Co-signed by the Executive Directors, Board Chairs, and Presidents on behalf of their respective organisations: Associaçāo de Empresas de Software Open Source Portuguesas (ESOP) CNLL, the French Open Source Business Association The Document Foundation (TDF) Eclipse Foundation European Open Source Software Business Associations (APELL) COSS - Finnish Centre for Open Systems and Solutions Linux Foundation Europe Open Forum Europe (OFE) Open Source Business Alliance (OSBA) Open Source Initiative (OSI) Open Systems and Solutions (COSS) OW2 Software Heritage Foundation